Abstract:
This coverage is a predictive data layer of shallow-rapid slope stability using one or more calibrated GIS-based models. This grid covers all forested watersheds of western Washington State. This data layer is an anticipated outcome of the Forestry Module negotiations as outlined in the Forest and Fish Report (1999) and legislated in the Engrossed Substitute House Bill 2091 (1999).

FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the
Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM).
Elements shown with green
text are defined in the ESRI Profile of the CSDGM.
Elements shown with a green asterisk (*)
will be automatically updated by ArcCatalog.
ArcCatalog adds hints indicating which FGDC elements are mandatory;
these are shown with gray text.

This coverage is a predictive data layer of shallow-rapid slope stability using one or more calibrated GIS-based models. This grid covers all forested watersheds of western Washington State. This data layer is an anticipated outcome of the Forestry Module negotiations as outlined in the Forest and Fish Report (1999) and legislated in the Engrossed Substitute House Bill 2091 (1999).

Purpose:

The purpose of this dataset is to be a screen for determining shallow-rapid landslide potential.
It is intended to be used for pre-classification screeening of forest practices applications and
screening for slope stability concerns on managed timberlands.

Supplemental information:

This data is derived from calibrated algorithms (models) that use DEMs to
generate slope and curvature information. The models used are SMORPH and
SHALSTAB. The stated resolution of the data is tied to the resolution of the DEM
available in the area. Additionally, other information, such as landslide
inventories, soils, mass wasting units, geology, and precipitation amounts are
used in the calibration of these models to a specific area. These landslide data were
collected at a variety of scales, over a large period of years. The horizontal accuracy of the grid coverage is dependent on the resolution of the Digital Elevation Model (DEM) from which it was derived. Better information
is obtained with higher resolution DEMs. In those areas where a 10 meter DEM
was available, the accuracy is +/- 35 feet. At present, 10 meter resolution data are available for most of western Washington. As better DEMs become available, the model may be rerun in those areas and will update the existing coverage.

*Language of dataset:
en

Time period of content:

Time period information:

Multiple dates/times:

Single date/time:

Calendar date:
1/1/2000.

Single date/time:

Calendar date:
6/1/2000

Single date/time:

Calendar date:
9/1/2001

Currentness reference:

publication date

Status:

Progress:
In work

Maintenance and update frequency:
Irregular

Spatial domain:

Bounding coordinates:

*West bounding coordinate:
-124.864005

*East bounding coordinate:
-120.627309

*North bounding coordinate:
49.029936

*South bounding coordinate:
45.482924

Local bounding coordinates:

*Left bounding coordinate:
591456.807526

*Right bounding coordinate:
1607802.516783

*Top bounding coordinate:
1348537.516216

*Bottom bounding coordinate:
81760.325589

Keywords:

Theme:

Theme keywords:
slope stability, landslides, predictive modeling

Theme keyword thesaurus:REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.

Place:

Place keywords:
western Washington State

Access constraints:
A user must have agreed to the product license agreement before accessing the data set.

Use constraints:

There are no use constraints on this data set other than those listed in the Product License Agreement (PLA).